Q: What are the prime factors of the number 726,123,244?

 A: 2, 7, 11, 17, 138679

Why are those the prime factors of the number 726,123,244?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 726,123,244

726,123,244
Factor Arrows
2363,061,622
Factor Arrows
2181,530,811
Factor Arrows
725,932,973
Factor Arrows
112,357,543
Factor Arrows
17138,679

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 7, 11, 17, 138679

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 11 x 17 x 138,679 = 726,123,244

This can also be written as 22 x 71 x 111 x 171 x 138,6791 = 726,123,244

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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